Java/BucketSort.java
// Java program to sort an array using bucket sort.

import java.util.*;
import java.util.Collections;

class Bucket_Sort {

    // Function to sort arr[] of size n using bucket sort
    static void bucketSort(float[] arr, int n) {
        if (n <= 0)
            return;

        // 1) Create n empty buckets
        @SuppressWarnings("unchecked")
        Vector<Float>[] buckets = new Vector[n];

        for (int i = 0; i < n; i++)
            buckets[i] = new Vector<>();

        // 2) Put arrays.array elements in different buckets
        for (int i = 0; i < n; i++) {
            float idx = arr[i] * n;
            buckets[(int)idx].add(arr[i]);
        }

        // 3) Sort individual buckets
        for (int i = 0; i < n; i++)
            Collections.sort(buckets[i]);


        // 4) Concatenate all buckets into arr[]
        int index = 0;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < buckets[i].size(); j++)
                arr[index++] = buckets[i].get(j);
        }
    }

    // Driver code
    public static void main(String[] args) {
        float[] arr = {
                (float)0.897, (float)0.565,
                (float)0.656, (float)0.1234,
                (float)0.665, (float)0.3434
        };

        int n = arr.length;
        bucketSort(arr, n);

        System.out.println("Sorted arrays.array is ");
        for (float el : arr)
            System.out.print(el + " ");
    }
}
